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Hypertension Research
Vol. 24 (2001) No. 4 July P 359-363

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http://doi.org/10.1291/hypres.24.359

Clinical studies

Hypertension accelerates the progression of renal disease in patients with chronic renal failure. Doxazosin, an α1-antagonist, is an antihypertensive agent with a long half-life. In this study, 15 patients with chronic renal failure were treated only with doxazosin and diuretics for 6 months and their blood pressure, renal parameters and lipid profile were measured. The initial dose of doxazosin was 2 mg/day and it was titrated until blood pressure was normalized. The average dose was 5.6 mg/day. As expected, systolic and diastolic blood pressure were decreased with treatment (165/91 mmHg to 135/73 mmHg). The drop in blood pressure was associated with an increase in glomerular filtration and a decrease in plasma BUN and creatinine levels. Reduction in mean blood pressure and decrease in proteinuria had a significant positive correlation (r=0.048, p=0.007). Proteinuria was decreased from 1.8 mg/day to 1.3 mg/day with doxazosin treatment and triglycerides also decreased, while HDL-cholesterol was increased. No side effects were observed. These results indicate that doxazosin is an efficient depressor agent with renal protective actions and that higher doses of doxazosin can be safely given to patients with chronic renal failure. (Hypertens Res 2001; 24: 359-363)

Copyright © 2001 by the Japanese Society of Hypertension

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